Choosing a Frequency Converter: What Affects the Price
When a buyer has to choose a frequency converter, they face a wide range of models from different brands. The prices for such devices can also vary significantly. However, it is important to understand that the price of a frequency converter depends on the set of features and specifications offered. Here are the main parameters that affect the cost:
- Control Type: vector or scalar. A more powerful processor is required for vector mode, thus the price for such devices will be higher.
- Overload Capacity: 110% (120%) or 150% for 1 minute. The higher the overload capacity, the more expensive the frequency converter.
- Coating of Boards with Lacquer: the cost depends on the class of coating — the higher the class, the higher the price.
- Built-in Programmable Logic Controller (PLC): the presence of a PLC increases the cost of the converter.
- Built-in Brake Chopper: the cost of the converter rises with its presence.
- Built-in DC Link Choke: its availability increases the cost.
- EMC Filter: the presence of this filter increases the cost.
- Remote Control Panel: a converter with a remote panel is more expensive than one with a non-removable panel.
- Quality of Electronic Components: will directly affect the warranty period of the device.
- Other Factors: these include the number of inputs/outputs, the ability to connect expansion cards, working with an encoder, connecting network protocols, etc.
It is important to consider that the price of the converter also depends on the country to which it is planned to be delivered. For example, for the European market, the use of an EMC filter is mandatory, and starting from a certain power, a DC link choke is required. If manual fan speed adjustment is needed, almost any frequency converter will do, but for specific tasks, not every device will be suitable.
To save time in choosing a frequency converter, we recommend checking out useful articles and contacting our managers or engineers for the selection of the optimal model that meets your requirements.